Implementing an all CSS tooltip

GitHub’s UI is a complex system of actions, notes and complex meanings. As a result, we’ve leaned pretty hard on tooltips. Since the site first launched we used a tooltip plugin called tipsy. Performance troubles led us to build CSS tooltips.

Designs

This is my personal coding styleguide. I try to cover how I write HTML, CSS, JavaScript and Ruby.
I'm still writing out more docs, but I think I've pretty much nailed the design down.
Full site - http://jonrohan.codes/styleguide/

My Story

From a young age, I’ve been fascinated with software. I used to sit with my family IBM PC with 8086 processor learning DOS and unscrewing the lid to look at the insides. Since then I knew, I wanted to design and build software.

After studying Computer Science in school and graduating in 2006, I decided to move out to San Francisco, CA to pursue my tech career. My first big break came when I met a small crew building a social site called Pownce. I decided to build a 3rd-party Adobe AIR client for it which eventually became Pownce desktop v2.